Commercial vehicle toolbox cover assembly made of composite material

Abstract

In order to solve the problems that a tool box cover is poor in heat preservation and heat insulation performance, large in dead weight and the like, the utility model provides a composite material tool box cover assembly of a commercial vehicle, which comprises a tool box cover outer plate, a tool box cover inner plate and a foaming layer, a hinge installation point, a drawstring installation point and a lock pin installation point are arranged on the inner side face of the toolbox cover outer plate, installation holes distributed corresponding to the hinge installation point, the drawstring installation point and the lock pin installation point in position are formed in the toolbox cover inner plate, and an injection hole is further formed in the toolbox cover inner plate. And the overall structural rigidity and strength and the heat insulation performance are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a composite material commercial vehicle toolbox cover assembly. Background Technology

[0002] Traditional heavy-duty truck cab toolbox covers are mostly made of a single metal material, using a welded structure of inner and outer metal plates. Toolbox covers made of a single material have poor thermal insulation performance, and the overall structural strength, rigidity, and dent resistance are poor. At the same time, they cannot meet the design requirements for further lightweighting. Especially in cold-region markets, due to the large temperature difference and air humidity between the inside and outside of the cab, metal toolbox covers have poor thermal insulation performance and are at risk of frost, condensation, and corrosion. Utility Model Content

[0003] To address the issues of poor thermal insulation and heavy weight of toolbox covers, this utility model provides a composite material commercial vehicle toolbox cover assembly, employing the following technical solution:

[0004] A composite material commercial vehicle toolbox cover assembly, characterized in that it includes an outer toolbox cover panel, an inner toolbox cover panel, and a foam layer. The outer toolbox cover panel and the inner toolbox cover panel are bonded together around their perimeter with structural adhesive. The inner side of the outer toolbox cover panel is provided with hinge mounting points, pull strap mounting points, and locking pin mounting points. The inner toolbox cover panel is provided with mounting holes corresponding to the positions of the hinge mounting points, pull strap mounting points, and locking pin mounting points. The inner toolbox cover panel is also provided with injection holes.

[0005] Furthermore, both the outer and inner panels of the toolbox cover are made of fiberglass.

[0006] Furthermore, the inner side of the outer panel of the toolbox cover is provided with annular protrusions for assembly and positioning with the inner panel of the toolbox cover.

[0007] Furthermore, the thickness of the annular protrusion facing inward is equal to the sum of the thickness of the structural adhesive and the inner plate of the toolbox cover.

[0008] Furthermore, the foaming layer is polyurethane foam, and the thickness of the foaming layer is not less than 20mm.

[0009] Furthermore, the thickness of both the outer and inner panels of the toolbox cover is 2.5 mm.

[0010] Furthermore, the injection holes are provided in multiple sets, and the multiple sets of injection holes are evenly distributed along the inner wall of the inner plate of the toolbox cover.

[0011] Furthermore, the lower part of the inner side of the outer plate of the toolbox cover is provided with an inwardly protruding arc-shaped groove.

[0012] Furthermore, the inner side of the toolbox cover inner plate is also provided with an inner plate boss.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The outer and inner panels of the toolbox lid are made of fiberglass, with a foam layer filling the space between them. This improves both the rigidity and the overall thermal insulation performance of the structure.

[0015] 2. An annular protrusion is provided on the inner side of the outer panel of the toolbox cover to facilitate assembly and positioning with the inner panel of the toolbox cover and ensure assembly accuracy;

[0016] 3. Both the inner and outer panels are made of fiberglass, making the overall structure lightweight. Compared with traditional metal toolbox lids, the weight is reduced by up to 30%, and it can effectively solve the problem of toolbox lid corrosion in cold and coastal areas. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present utility model.

[0018] Figure 2 This is a cross-sectional view of the structure of this utility model.

[0019] Figure 3 This is an exploded three-dimensional structural diagram of the present invention.

[0020] Figure 4 Schematic diagram of the outer panel structure of the toolbox cover

[0021] Figure 5 Schematic diagram of the inner panel structure of the toolbox cover

[0022] Among them, 1-toolbox cover outer panel, 101-hinge mounting point, 102-pull strap mounting point, 103-locking pin mounting point, 104-annular protrusion, 105-arc groove; 2-toolbox cover inner panel, 201-injection hole, 202-installation through hole, 203-inner panel boss, 3-foaming layer, 4-structural adhesive. Detailed Implementation

[0023] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0024] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the view direction or positional relationship, and are only for the convenience of describing the utility model, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model.

[0025] like Figure 1-3 The composite material commercial vehicle toolbox cover assembly shown includes an outer toolbox cover 1, an inner toolbox cover 2, a foam layer 3, and a structural adhesive 4. The outer toolbox cover 1 is bonded to the outside of the inner toolbox cover 2 by the structural adhesive 4, and the foam layer 3 is located between the outer toolbox cover 1 and the inner toolbox cover 2.

[0026] Specifically, the outer panel of the toolbox cover 1, as shown... Figure 4 As shown, the entire structure is a rectangular plate made of fiberglass with a thickness of 2.5mm. The inner side has hinge mounting points 101, pull strap mounting points 102, and locking pin mounting points 103 on the upper, middle, and lower parts, respectively. Each mounting point is a boss structure with threaded holes. The lower inner side of the toolbox cover outer plate 1 also has an inwardly protruding arc groove 105. The arc groove 105 can improve the structural strength of the toolbox cover outer plate 1 and the aesthetics after assembly. The inner side of the toolbox cover outer plate 1 also has annular protrusions 104 around its perimeter. The thickness of the annular protrusions 104 protruding inward is equal to the sum of the thickness of the structural adhesive 4 and the inner plate 2 of the toolbox cover. The purpose is to ensure that the annular protrusions 104 and the inner side of the toolbox cover inner plate 2 are on the same plane, so as to ensure the flatness between the two and the mounting surface and improve the assembly effect.

[0027] Toolbox lid inner panel 2 Figure 5 As shown, the toolbox cover has a rectangular plate structure made of fiberglass with a thickness of 2.5mm. Five sets of injection holes 201 are distributed throughout the inner plate 2, evenly spaced along the inner wall of the toolbox cover. The upper, middle, and lower parts of the inner plate 2 are respectively provided with mounting holes 202 corresponding to the hinge mounting points 101, pull strap mounting points 102, and locking pin mounting points 103 on the outer plate 1 of the toolbox cover. In addition, an inner plate boss 203 is provided on the inner side of the inner plate 2. The inner plate boss 203 enhances the overall structural strength of the inner plate 2, thereby improving its rigidity and deformation capacity in this area, preventing bending or deformation due to external forces during installation. Furthermore, when the toolbox cover is closed, the inner plate boss 203 acts as a support, providing a certain degree of support.

[0028] During installation, the inner panel 2 of the toolbox cover is bonded to the annular protrusion 104 around the perimeter with structural adhesive 4, thereby fixing it to the outer panel 1 of the toolbox cover. The hinge, pull strap, and locking pin pass through the corresponding mounting holes 202 and are fixedly connected to the hinge mounting point 101, pull strap mounting point 102, and locking pin mounting point 103, respectively. Finally, foam is injected into the gap between the inner panel 2 and the outer panel 1 of the toolbox cover through multiple sets of injection holes 201, and the foam layer thickness is 20mm.

[0029] This device adopts a toolbox cover assembly structure that combines fiberglass and foam, which not only improves the overall structural rigidity but also effectively enhances thermal insulation performance. Moreover, compared with traditional metal toolbox covers, it reduces weight by up to 30%, achieving overall structural lightweighting.

[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.

Claims

1. A composite material commercial vehicle toolbox cover assembly, characterized in that, The toolbox includes an outer cover, an inner cover, and a foam layer. The outer cover and the inner cover are bonded together around the perimeter with structural adhesive. The inner side of the outer cover has hinge mounting points, pull strap mounting points, and locking pin mounting points. The inner cover has mounting holes corresponding to the positions of the hinge mounting points, pull strap mounting points, and locking pin mounting points. The inner cover also has injection holes.

2. The composite material commercial vehicle toolbox cover assembly according to claim 1, characterized in that, Both the outer and inner panels of the toolbox cover are made of fiberglass.

3. The composite material commercial vehicle toolbox cover assembly according to claim 1, characterized in that, The toolbox cover outer panel has annular protrusions around its inner side for assembly and positioning with the toolbox cover inner panel.

4. The composite material commercial vehicle toolbox cover assembly according to claim 3, characterized in that, The thickness of the annular protrusion facing inward is equal to the sum of the thickness of the structural adhesive and the inner plate of the toolbox cover.

5. The composite material commercial vehicle toolbox cover assembly according to claim 1, characterized in that, The foaming layer is polyurethane foam, and the thickness of the foaming layer is not less than 20mm.

6. The composite material commercial vehicle toolbox cover assembly according to claim 1, characterized in that, The thickness of both the outer and inner panels of the toolbox cover is 2.5 mm.

7. The composite material commercial vehicle toolbox cover assembly according to claim 1, characterized in that, The injection holes are provided in multiple sets, and the multiple sets of injection holes are evenly distributed along the inner wall of the inner plate of the toolbox cover.

8. The composite material commercial vehicle toolbox cover assembly according to claim 1, characterized in that, The toolbox cover has an inwardly protruding arc-shaped groove on the lower part of the inner side of the outer plate.

9. The composite material commercial vehicle toolbox cover assembly according to claim 1, characterized in that, The inner side of the toolbox cover is also provided with an inner plate boss.

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